Stereoscopic tube polishing machine

Abstract

The utility model discloses a three-dimensional pipe polishing machine, including a frame, a workpiece clamping mechanism and a polishing mechanism are installed on the frame, the polishing mechanism is mainly composed of a polishing disc and a movable mechanism, the movable mechanism includes a longitudinal slide rail and a transverse slide rail, the longitudinal slide rail is fixed on the frame, the transverse slide rail is slidably connected with the longitudinal slide rail through a longitudinal sliding seat and a longitudinal driving mechanism, the transverse movable mounting seat is slidably connected with the transverse slide rail through a transverse sliding seat and a transverse driving mechanism, the transverse movable mounting seat is slidably connected with the lifting platform through a vertical sliding seat and a vertical driving mechanism, the lower end of the lifting platform is installed with a rotating mechanism for driving the bracket and the polishing disc to rotate, and the bracket is installed with a flipping mechanism for driving the polishing disc to overturn as a whole. The polishing machine can realize five-dimensional movement, so that the polishing disc can move along the axis of different planes of the three-dimensional pipe fitting, so that the polishing disc can continuously polish the entire three-dimensional pipe.

Description

Technical Field

[0001] The utility model relates to a metal polishing machine, in particular to a metal pipe polishing machine. Background Art

[0002] The existing polishing machine is mainly composed of a polishing mechanism and a workpiece clamping mechanism. Some workpiece clamping mechanisms carry the workpiece to the polishing wheel or abrasive belt of the polishing mechanism for polishing; some polishing mechanisms move to polish the fixed workpiece, etc. However, the above-mentioned polishing machine can only polish pipes such as straight pipes or curved pipes whose axes are in the same plane. As for some three-dimensional pipes whose axes of various parts of the pipes are in different planes. The above-mentioned polishing machine cannot continuously polish the above-mentioned three-dimensional pipes as a whole, but can only polish them in sections and intermittently, or simply polish them by hand, and it is difficult to improve production efficiency. For example, a polishing machine disclosed in the Chinese utility model patent document with patent number 202021950207.2 and the name of a CNC pipe bending automatic sanding machine can only polish pipes such as straight pipes or curved pipes whose axes are in the same plane. When encountering three-dimensional pipes whose axes of various parts of the pipes are in different planes, they will be stuck on the pipes and cannot move, and the remaining parts cannot be polished. Summary of the invention

[0003] The utility model aims to provide a polishing machine which can continuously polish a stereoscopic tube.

[0004] The utility model achieves the above-mentioned purpose by:

[0005] The three-dimensional tube polishing machine comprises a frame, on which a workpiece clamping mechanism and a polishing mechanism are installed. The polishing mechanism is mainly composed of a polishing disc and a movable mechanism. The movable mechanism comprises a longitudinal slide rail and a transverse slide rail. The longitudinal slide rail is fixed on the frame, and the transverse slide rail is slidably connected to the longitudinal slide rail through a longitudinal sliding seat and a longitudinal driving mechanism. The transverse movable mounting seat is slidably connected to the transverse slide rail through a transverse sliding seat and a transverse driving mechanism. The transverse movable mounting seat is slidably connected to the vertical driving mechanism and the lifting platform through a vertical sliding seat. A rotating mechanism for driving the bracket and the polishing disc to rotate is installed at the lower end of the lifting platform, and a flipping mechanism for driving the polishing disc to flip over as a whole is installed on the bracket.

[0006] Among them, the flipping mechanism includes a flipping servo motor and a gearbox fixed on the bracket, the rotating shaft of the gearbox is fixed with a connecting block, the connecting block is fixedly connected to the fixed gear of the polishing disk, the fixed gear is provided with a central through hole, the periphery of the central through hole is provided with an axial convex ring, the axial convex ring is fixedly connected to the inner ring of the bearing, the outer ring of the bearing is fixedly connected to the movable gear, the surface of the movable gear is provided with a driving wheel and a driven wheel for driving the sanding belt to rotate, the connecting shaft of the driving wheel passes through the movable gear and is fixedly connected to the pinion at the bottom of the movable gear, and the pinion is covered with a transmission belt connected to the fixed gear; in addition, the fixed gear is fixedly connected to the servo motor, and the servo motor is connected to the movable gear through a belt.

[0007] Wherein, a rolling pressure wheel for limiting the position of the transmission belt is installed on the back side of the movable gear, and the rolling pressure wheel is in contact with the outer side surface of the transmission belt.

[0008] The bracket is in an inverted U shape, with a flip servo motor and a gearbox installed at one end of the bracket, and the other end movably connected to the polishing disc through a rotating shaft and a connecting block, and the top is fixedly connected to the output shaft of the rotating mechanism. The polishing disc is located between the ends of the two connecting arms of the bracket.

[0009] Among them, the longitudinal driving mechanism includes a longitudinal servo motor and a longitudinal screw rod, the longitudinal servo motor is fixed at one end of the longitudinal slide rail and is connected to the longitudinal screw rod in transmission, and a transmission nut cooperating with the longitudinal screw rod is fixed below the end of the transverse slide rail; the transverse driving mechanism includes a transverse servo motor and a transverse screw rod, the transverse servo motor is fixed at one end of the transverse slide rail and is connected to the transverse screw rod in transmission, and a transverse movable mounting seat is installed with a transmission nut cooperating with the transverse screw rod; the vertical driving mechanism includes a vertical servo motor installed on the top of the lifting platform, the vertical servo motor is connected to the vertical screw rod in transmission, and the vertical transmission nut cooperating with the vertical screw rod is fixedly connected to the transverse movable mounting seat.

[0010] A dust hood is arranged below the polishing disc, baffles are arranged on the plane where the dust hood is located and around the frame, and the upper part is communicated with the outside world to form a semi-enclosed polishing work space.

[0011] Wherein, a plurality of air inlets are arranged on the upper parts of the baffles on both sides of the polishing workspace.

[0012] Wherein, a sliding seat is fixed to the front baffle of the polishing workspace, and the sliding seat is sleeved on the front slide rail of the frame. The front baffle is also connected to the telescopic rod of the cylinder fixed on the frame.

[0013] The beneficial effect of the utility model is that the polishing disc of the utility model can respectively realize five-dimensional movement, namely longitudinal movement, lateral movement, lifting movement, rotation and front and back overturning movement under the action of the longitudinal drive mechanism, the transverse drive mechanism, the vertical drive mechanism, the rotating mechanism and the flipping mechanism. In this way, the polishing disc can move along the axis of different planes of the three-dimensional pipe fitting, so that the polishing disc can continuously polish the entire three-dimensional pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0015] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0016] Figure 2 This is the structural diagram after removing the front baffle;

[0017] Figure 3 This is a structural diagram after removing the baffle and other external parts of the fuselage;

[0018] Figure 4 yes Figure 3 A magnified image of point A;

[0019] Figure 5 It is a structural diagram of some movable mechanisms and polishing discs of the utility model;

[0020] Figure 6 yes Figure 5 The enlarged view of point B;

[0021] Figure 7 It is a structural diagram of part of the movable mechanism and the polishing disc of the utility model from another direction;

[0022] Figure 8 yes Figure 7 Enlarged view of point C;

[0023] Fig. 9 A structural diagram of the third direction of the part of the movable mechanism and the polishing disc of the utility model;

[0024] Fig.10 yes Fig. 9 Enlarged view of point D. DETAILED DESCRIPTION

[0025] Reference Figures 1 to 10The three-dimensional pipe polishing machine comprises a frame 1, on which a workpiece clamping mechanism 2 and a polishing mechanism 3 are installed. The polishing mechanism 3 is mainly composed of a polishing disc 4 and a movable mechanism. The movable mechanism comprises a longitudinal slide rail 5 and a transverse slide rail 6. The longitudinal slide rail 5 is fixed on the frame 1, and the transverse slide rail 6 is slidably connected to the longitudinal slide rail 5 through a longitudinal sliding seat 7 and a longitudinal driving mechanism 8. The transverse movable mounting seat 9 is slidably connected to the transverse slide rail 6 through a transverse sliding seat 10 and a transverse driving mechanism 11. The transverse movable mounting seat 9 is slidably connected to the vertical driving mechanism 13 and a lifting platform 14 through a vertical sliding seat 12. A rotating mechanism 16 for driving a bracket 15 and the polishing disc 4 to rotate is installed at the lower end of the lifting platform 14, and a flipping mechanism 17 for driving the polishing disc 4 to flip over as a whole is installed on the bracket 15. The polishing disc 4 of the utility model can realize five-dimensional movement, namely longitudinal movement, lateral movement, lifting movement, rotation, and front and back flipping, under the action of the longitudinal drive mechanism 8, the transverse drive mechanism 11, the vertical drive mechanism 13, the rotating mechanism 16 and the flipping mechanism 17. In this way, the polishing disc 4 can move along the axis of different planes of the three-dimensional pipe, so that the polishing disc can continuously polish the entire three-dimensional pipe.

[0026] Among them, the flipping mechanism 17 includes a flipping servo motor 18 and a gearbox 19 fixed on the bracket 15, the rotating shaft 191 of the gearbox 19 is fixed with a connecting block 20, the connecting block 20 is fixedly connected to the fixed gear 41 of the polishing disk 4, the fixed gear 41 is provided with a central through hole, and an axial convex ring 411 is provided around the central through hole, the axial convex ring 411 is fixedly connected to the inner ring of the bearing, the outer ring of the bearing is fixedly connected to the movable gear 42, and the surface of the movable gear 42 is provided with a driving wheel 422 and a driven wheel 423 for driving the sanding belt 421 to rotate, the connecting shaft of the driving wheel 422 passes through the movable gear 42 and is fixedly connected to the pinion 424 at the bottom of the movable gear, and the pinion 424 is sleeved with a transmission belt 43 that is transmission-connected to the fixed gear 41; in addition, the fixed gear 41 is fixedly connected to the servo motor 44, and the servo motor 44 is transmission-connected to the movable gear 42 through a belt 45. When the servo motor 44 is working, the belt will drive the movable gear 42 to rotate, and at the same time drive the pinion 424 to rotate around the fixed gear 41; because the transmission belt 43 is sleeved between the pinion 424 and the fixed gear 41, the pinion 424 rotates while revolving, thereby driving the abrasive belt 421 on the driving wheel 422 and the driven wheel 423 to rotate and polish the work on the abrasive belt 421. Generally, the workpiece is in contact with the abrasive belt 421 through the central through hole of the fixed gear 41. During the polishing process, the polishing disc 4 is always kept perpendicular to the workpiece, so that the abrasive belt 421 is in uniform contact with the workpiece to ensure the uniformity of the polishing surface. The main function of the flipping mechanism 17 is to use the operation of the flipping servo motor 18 and the gearbox 19 to flip the front and back sides of the polishing disc 4, to ensure that the polishing disc 4 is always kept perpendicular to the workpiece, and to allow the polishing disc 4 to move smoothly along the axis of the three-dimensional pipe for continuous polishing.

[0027] In addition, a rolling pressure wheel 46 for limiting the position of the transmission belt 43 is installed on the back of the movable gear 42, and the rolling pressure wheel 46 contacts the outer side of the transmission belt 43. In this way, the transmission belt can be ensured to have more contact with the fixed gear 41 and the pinion 424, thereby preventing slippage and ensuring the polishing quality. In addition, the fixed gear 41 and the pinion 424 are not directly meshed but connected by the transmission belt 43, which can effectively reduce or avoid the impact on the gear caused by stress changes or jamming when polishing the turning position of the workpiece, thereby ensuring the service life of the polishing disc.

[0028] In addition, the bracket 15 is in an inverted U shape, the flip servo motor 18 and the gearbox 19 are installed at one end of the bracket 15, the other end is movably connected to the polishing disc 4 through the rotating shaft 191 and the connecting block 20, the top is fixedly connected to the output shaft 161 of the rotating mechanism 16, and the polishing disc 4 is located between the ends of the two connecting arms 151 of the bracket 15. When the output shaft 161 of the rotating mechanism 16 rotates, the U-shaped bracket flip servo motor 47, the gearbox 48 and the polishing disc 4 will rotate accordingly, ensuring that the polishing disc 4 can smoothly move along the axis of the three-dimensional pipe with a turning position for continuous polishing.

[0029] The longitudinal drive mechanism 8 includes a longitudinal servo motor 81 and a longitudinal screw 82. The longitudinal servo motor 81 is fixed at one end of the longitudinal slide rail 5 and is connected to the longitudinal screw 82. A transmission nut 83 that cooperates with the longitudinal screw 82 is fixed below the end of the transverse slide rail 6. When the longitudinal servo motor 81 is working, the longitudinal screw 82 rotates, thereby driving the transmission nut, the transverse slide rail 6 and the polishing disc 4 to move longitudinally along the longitudinal slide rail 5, so that the polishing disc 4 polishes the pipe fittings with a longitudinal direction. The transverse drive mechanism 11 includes a transverse servo motor 111 and a transverse screw 112. The transverse servo motor 111 is fixed at one end of the transverse slide rail 6 and is connected to the transverse screw 112. The transverse moving mounting seat 9 is equipped with a transmission nut 113 that cooperates with the transverse screw 112. When the transverse servo motor 111 is working, the transverse screw 112 will rotate, thereby driving the transmission nut 83, the transverse moving mounting seat 9 and the polishing disc 4 to move transversely along the transverse slide rail 6, so that the polishing disc 4 polishes the pipe fittings with a transverse direction. The vertical drive mechanism 13 includes a vertical servo motor 131 installed on the top of the lifting platform 14, the vertical servo motor 131 is connected to the vertical screw 132 by transmission, and the vertical transmission nut 133 matched with the vertical screw 132 is fixedly connected to the horizontal movable mounting seat 9. When the vertical servo motor 131 is working, the vertical screw 132 will be driven, thereby driving itself, the lifting platform 14, the vertical servo motor 131 and the polishing disc 4 to rise and fall relative to the horizontal movable mounting seat 9, so that the polishing disc 4 can polish the pipes with a vertical direction. Of course, the above-mentioned driving mechanism can be driven by an oil cylinder or an air cylinder instead of a servo motor and a screw to drive the movement of related components, but the accuracy of the movement of related components is best achieved by using a servo motor as a power source and a screw as a transmission component.

[0030] In addition, the workpiece will generate dust that is harmful to human body during the polishing process. For this reason, a dust hood 21 is provided under the polishing disc 4. The plane where the air inlet 211 of the dust hood is located and the frame 1 are surrounded by baffles 22. The upper part is connected to the outside world to form a semi-enclosed polishing work space. When the dust hood 21 starts to absorb dust, the air will flow from the top of the bracket into the body and then be sucked away by the dust hood. The air flowing from top to bottom can effectively prevent the dust generated by polishing from contaminating precision parts such as the screw rod, ensuring that the precision parts such as the screw rod can work normally. Of course, dust covers 60 can be installed on precision parts such as the screw rod and guide rails to further prevent dust pollution.

[0031] To further prevent the dust generated by polishing from contaminating precision parts such as the screw and guide rails, a plurality of air inlets 225 are provided on the upper part of the baffles 22 on both sides of the polishing workspace. When the dust hood 21 is vacuuming, air will enter from the air inlets 225 on the baffles 22 on both sides, blocking the dust from radiating to the upper part of the machine body.

[0032] In order to facilitate the workers' polishing work, the front baffle 22 of the polishing workspace is fixed with a sliding seat 223, and the sliding seat 223 is sleeved on the front slide rail 224 of the frame 1. The front baffle 22 is also connected to the telescopic rod 26 of the cylinder 25 fixed on the frame 1. The telescopic action of the telescopic rod 26 of the cylinder 25 can control the opening and closing action of the front baffle 22, which is convenient for the workers to load and remove the workpieces, and can effectively prevent the dust from being emitted outward.

Claims

1. A three-dimensional tube polishing machine, comprising a frame (1), on which a workpiece clamping mechanism (2) and a polishing mechanism (3) are mounted, wherein the polishing mechanism (3) is mainly composed of a polishing disc (4) and a movable mechanism, and is characterized in that: The movable mechanism comprises a longitudinal slide rail (5) and a transverse slide rail (6), the longitudinal slide rail (5) being fixed on the frame (1), the transverse slide rail (6) being slidably connected to the longitudinal slide rail (5) via a longitudinal sliding seat (7) and a longitudinal driving mechanism (8), the transverse movable mounting seat (9) being slidably connected to the transverse slide rail (6) via a transverse sliding seat (10) and a transverse driving mechanism (11), the transverse movable mounting seat (9) being slidably connected to the vertical driving mechanism (13) and a lifting platform (14) via a vertical sliding seat (12), the lower end of the lifting platform (14) being provided with a rotating mechanism (16) for driving the bracket (15) and the polishing disc (4) to rotate, and a flipping mechanism (17) for driving the polishing disc (4) to flip over as a whole being installed on the bracket (15).

2. The three-dimensional tube polishing machine according to claim 1, characterized in that: The flip mechanism (17) comprises a flip servo motor (18) and a gearbox (19) fixed on a bracket (15); a connecting block (20) is fixed to a rotating shaft (191) of the gearbox (19); the connecting block (20) is fixedly connected to a fixed gear (41) of the polishing disc (4); the fixed gear (41) has a central through hole, an axial convex ring (411) is provided around the central through hole, the axial convex ring (411) is fixedly connected to an inner ring of a bearing, an outer ring of the bearing is fixedly connected to a movable gear (42), and the movable gear (42) is fixedly connected to the inner ring of the bearing. A driving wheel (422) and a driven wheel (423) for driving the sanding belt (421) to rotate are provided on the surface of the movable gear (42); a connecting shaft of the driving wheel (422) passes through the movable gear (42) and is fixedly connected to a pinion (424) at the bottom of the movable gear; a transmission belt (43) is sleeved on the pinion (424) and is transmission-connected to the fixed gear (41); in addition, the fixed gear (41) is fixedly connected to a servo motor (44); and the servo motor (44) is transmission-connected to the movable gear (42) via a belt (45).

3. The three-dimensional tube polishing machine according to claim 2, characterized in that: A rolling pressure wheel (46) for limiting the position of the transmission belt (43) is installed on the back side of the movable gear (42), and the rolling pressure wheel (46) is in contact with the outer side surface of the transmission belt (43).

4. The three-dimensional tube polishing machine according to claim 1 or 2, characterized in that: The bracket (15) is in an inverted U-shape, with a flip servo motor (18) and a gearbox (19) mounted on one end of the bracket (15), and the other end being movably connected to the polishing disc (4) via a rotating shaft (191) and a connecting block (20), and the top being fixedly connected to an output shaft (161) of a rotating mechanism (16), and the polishing disc (4) being located between the ends of two connecting arms (151) of the bracket (15).

5. The three-dimensional tube polishing machine according to claim 1, characterized in that: The longitudinal drive mechanism (8) comprises a longitudinal servo motor (81) and a longitudinal screw rod (82), wherein the longitudinal servo motor (81) is fixed at one end of the longitudinal slide rail (5) and is transmission-connected to the longitudinal screw rod (82), and a transmission nut (83) matching with the longitudinal screw rod (82) is fixed below the end of the transverse slide rail (6); the transverse drive mechanism (11) comprises a transverse servo motor (111) and a transverse screw rod (112), wherein the transverse servo motor (111) is fixed at one end of the transverse slide rail (6) and is transmission-connected to the transverse screw rod (112), and a transmission nut (83) matching with the transverse screw rod (112) is installed on the transverse movable mounting seat (9); the vertical drive mechanism (13) comprises a vertical servo motor (131) installed on the top of the lifting platform (14), wherein the vertical servo motor (131) is transmission-connected to the vertical screw rod (132), and a vertical transmission nut (133) matching with the vertical screw rod (132) is fixedly connected to the transverse movable mounting seat (9).

6. The three-dimensional tube polishing machine according to claim 1, characterized in that: A dust hood (21) is provided below the polishing disc (4); baffles (22) are provided on the plane where the dust hood air inlet (211) is located and around the frame (1); the upper part is communicated with the outside, forming a semi-enclosed polishing work space.

7. The three-dimensional tube polishing machine according to claim 6, characterized in that: A plurality of air inlets (225) are provided on the upper parts of the baffles (22) on both sides of the polishing workspace.

8. The three-dimensional tube polishing machine according to claim 6, characterized in that: A sliding seat (223) is fixed to the front baffle plate (22) of the polishing workspace. The sliding seat (223) is sleeved on a front slide rail (224) of the frame (1). The front baffle plate (22) is also connected to a telescopic rod (26) of a cylinder (25) fixed to the frame (1).

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